#! /bin/sh ## Like "rcp" but uses netcat on a high port. ## do "ncp targetfile" on the RECEIVING machine ## then do "ncp sourcefile receivinghost" on the SENDING machine ## if invoked as "nzp" instead, compresses transit data. ## pick your own personal favorite port, which will be used on both ends. ## You should probably change this for your own uses. MYPORT=23456 ## if "nc" isn't systemwide or in your PATH, add the right place # PATH=${HOME}:${PATH} ; export PATH test "$3" && echo "too many args" && exit 1 test ! "$1" && echo "no args?" && exit 1 me=`echo $0 | sed 's+.*/++'` test "$me" = "nzp" && echo '[compressed mode]' # if second arg, it's a host to send an [extant] file to. if test "$2" ; then test ! -f "$1" && echo "can't find $1" && exit 1 if test "$me" = "nzp" ; then compress -c < "$1" | nc -v -w 2 $2 $MYPORT && exit 0 else nc -v -w 2 $2 $MYPORT < "$1" && exit 0 fi echo "transfer FAILED!" exit 1 fi # fall here for receiver. Ask before trashing existing files if test -f "$1" ; then echo -n "Overwrite $1? " read aa test ! "$aa" = "y" && echo "[punted!]" && exit 1 fi # 30 seconds oughta be pleeeeenty of time, but change if you want. if test "$me" = "nzp" ; then nc -v -w 30 -p $MYPORT -l < /dev/null | uncompress -c > "$1" && exit 0 else nc -v -w 30 -p $MYPORT -l < /dev/null > "$1" && exit 0 fi echo "transfer FAILED!" # clean up, since even if the transfer failed, $1 is already trashed rm -f "$1" exit 1